Ok its almost winter. I plan on beefing up the z06 but I want it to look/sound completely stock so I can mess with some 03+ cobras around here and make them think they're car is slow

I'm thinking 400rwhp will be a decent goal? Maybe 410-420? With a completely stock look, sound and driving other than an airbox.

Pulley (Painted black)
OMC, GT2-3, CheaTR? with 918s
Halltech Stinger (only visible mod)
Dyno tune (I have HP Tuners)
Ported TB

Any other ideas? Do you guys think this goal is acheivable?

The idea is basically to have a completely stock looking car, even with the hood up so you can just say its a 'Factory Freak' and smile

 

What is "OMC, GT2-3, CheaTR? with 918s"? Sorry, I have never seen or heard of that but then again I am not a big motorhead.
Get a set of Dynotech SuperMaxx LT Headers, that should give you 35-40HP.

 

You'll need to add headers to get to that 400+ mark. It would be tuff to do with out them

 

125HP shot of N2O!

 

You want a sleeper ZO6? I dont think sleeper and ZO6 should ever be in the same sentence!

 

Heads, cam and spring work it sounds like. The CheaTR cam is one of Thunder Racing's new innovations.

As for the "sleeper" you're going to have a tough time making a vette into a sleeper. You can keep the stock Ti exhaust system, but I'd definatly put headers on.

And screw it. May as well go ahead and do an LSX intake, TB, play w/ the tune along w/ the other stuff you've considered. A "sleeper" doesnt have to not have anything done to it...it just doesnt look like it has. You can paint the LSX intake black and shave down the FAST logo and most people would never know its any different than a regular LS1/6 intake.

 

Ok instead of saying my use of sleeper is wrong and saying get headers when I said I wanted it to look and sound completely stock how about some suggestions

Thanks
Sleeper is a stock looking car thats faster than stock but you can't tell.

 

Ok, sorry I was just joking. Anyways, are you planning on popping your hood for these Cobras?

I would go with some rockers(instead of a cam), they should be good for about 20 rwhp or so and shouldn't change the sound or idle any. Put some headers on with high flow cats and leave your stock exhaust, shouldn't sound much louder.

 

Yeah I'm popping the hood $$ racing EVERYTHING has to LOOK stock. So no headers. I think a cheaTR cam, ported TB, pulley and a good tune would get me to atleast 390rwhp. Rockers is a great idea, if I decide to keep the stock cam, also I haven't thought of thanks!

 

Yeah I'd also go back and edit all your post about making this sleeper of yours. So if you end up talking to any of the cobra guys on here or they have friends on this site, they wont be able to call the bs flag on you. lol
If you get long tube headers they will be able to see them from under the car. But you will have to have them for your hp goals. Keep the stock TI mufflers though.

 

I would go with a cheater cam, ported LS6 heads, ported TB, UD, Painted FAST intake, 160 stat, Vararam, and a good tune. Your stock Z06 exhaust has been proven to flow enough air for 600rwhp. Granted that was with a supercharger, but that proves it can make some power. 420rwhp should be with in reach sounding compleatly stock. Just my 02.

 

A local customers '02 Z06 is making 380 rwhp with CAI, TB bypass and a very, very good tune. I think 410 would be easy with a cam.

Also, '01YellowZ06 - what is the black C6 picture? Is that a photoshop or is the car actually lowered that much?

 

Why would headers not give you a stealth look or sound. Its really keeping the Titianium cat back exhaust that keeps the car sounding stock.

Do yourself a favor and buy a nice set of kooks or LG headers....Throw in a nice cam, give it ls1edit and have a good time.

Throw a conical Air filter on the end of the maf and your done.

I have about 400 rwhp and hindsights 20/20 but I should have gone with TTP's equalizer cam and comp 921 dual valve spring kit..

I would ONLY recommend dual valve springs. The valve springs are the weak link in lsX motors in general so thats the place to spend the money.

If your going to go with a mild cam I'd still go with dual valve springs.

My choices from my research to date:

Comp 921 kit
crane dual valve spring kit
and I've heard the patriot gold valve spring kit is good too..

More hindsight 20/20 information? Put in and I don't remember the exact terminology, a two piece timing chain cover or something that allows the extraction and installation of a new cam without removing the steering rack the second time around....

This way when you get the itch for more than 400rwhp you won't be looking at quite as much labor costs to go to a larger cam...

Trust me....You will. as time goes on want 440rwhp...460rwhp etc...

Figure $3500 for the cam and the kooks headers with the cats and x pipe installed..

400rwhp is very civilized with my 224/224 .563 114lsa/long tube headers/ pulley and 3.73 rear gears...

My only regret is not having waited for stainless steel headers as these mild steel headers I have have two welds in them where the bell housing bracket should be...("I" bracket on headers at bellhousing should have been "L" brackets)


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2001 ZO6 TTP 224/224 114lsa Cam Pkg 396rwhp 380 rwtq, dual crane valvesprings, Halltech Tunnel Ram, FLP headers, ASP 25% Pully, 3.73 Getrag Rear,2004 Z06 shocks,Shaner S2 TB,Hurst

 

No body even knows my cars modded other than the halltech Trap/stinger ...

I got 400rwhp and its nice...but see my post above for some good 20/20 hindsight ...HTH

 

I didn't see what year your Z06 is but I remember reading that throwing a set of AFR 205 heads by themselves got a guy named Stano on an 2002 or newer Z06 with its improved stock cam (over 2001 LS6) along with a great ls1edit session gave him?????????? 408rwhp.. Maybe this is the link: http://zo6vette.com/forums/showthrea...ight=afr+heads[/

He eventually a few months later did a cam and headers.....but I remember reading he had a stock stealth car with over 400rwhp by just doing the heads....You just got to feed the car 93 octane to keep the car from pinging I believe..

You should check him out with a search over at www.z06vette.com and then consider his route for the ultimate in stealth... I don't remember the details as he may have raised compression a bit...and the tune was a big part of his over 400rwhp..

 

You're telling me if you pop the hood I can't tell you have headers? Do you have the stock heatshields over them or something? I dont get it?

 

I have seen this thread thanks! I think it turned out he wasnt using SAE and he actually had 10rwhp less than the initial post but was still over 400. The only problem is that AFRs are stamped on the head right? Can't you see it on the normally blank spot on the passenger side head?
Remember the goal is that no one can tell its not completely bone stock even if they climb all over it

 

If you are running people who have a clue when they pop the hood:
Ported LS6 heads or AFR 205s (not sure if the AFRs have any visible markings on them)
small cam such as described above. I'd favor a lower lift cam and 918s if stealth is key.
pulley
ported TB
port match your intake to the heads
3.73s
stinger intake
electric cut-out. Let them see that and the stinger and think that is where the power comes from.

 

Yeah good question... thats what I was saying... Even if you have a heatshield someone can lay down and look under the car and they will be able to see the long tubes by doing that.

 

My thoughts exactly!